diff mbox series

[v4,6/8] media: dt-bindings: Add bindings for JH7110 Camera Subsystem

Message ID 20230413035541.62129-7-jack.zhu@starfivetech.com
State Superseded
Headers show
Series Add StarFive Camera Subsystem driver | expand

Commit Message

Jack Zhu April 13, 2023, 3:55 a.m. UTC 
Add the bindings documentation for Starfive JH7110 Camera Subsystem
which is used for handing image sensor data.

Signed-off-by: Jack Zhu <jack.zhu@starfivetech.com>
---
 .../bindings/media/starfive,jh7110-camss.yaml | 164 ++++++++++++++++++
 MAINTAINERS                                   |   7 +
 2 files changed, 171 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml

Comments

Laurent Pinchart April 19, 2023, 6:15 a.m. UTC | #1 
Hi Jack,

Thank you for the patch.

On Thu, Apr 13, 2023 at 11:55:39AM +0800, Jack Zhu wrote:
> Add the bindings documentation for Starfive JH7110 Camera Subsystem
> which is used for handing image sensor data.
> 
> Signed-off-by: Jack Zhu <jack.zhu@starfivetech.com>
> ---
>  .../bindings/media/starfive,jh7110-camss.yaml | 164 ++++++++++++++++++
>  MAINTAINERS                                   |   7 +
>  2 files changed, 171 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
> 
> diff --git a/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml b/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
> new file mode 100644
> index 000000000000..4cd144f1b845
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
> @@ -0,0 +1,164 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/starfive,jh7110-camss.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Starfive SoC CAMSS ISP
> +
> +maintainers:
> +  - Jack Zhu <jack.zhu@starfivetech.com>
> +  - Changhuang Liang <changhuang.liang@starfivetech.com>
> +
> +description:
> +  The Starfive CAMSS ISP is a Camera interface for Starfive JH7110 SoC. It
> +  consists of a VIN controller (Video In Controller, a top-level control until)
> +  and an ISP.
> +
> +properties:
> +  compatible:
> +    const: starfive,jh7110-camss
> +
> +  reg:
> +    maxItems: 2
> +
> +  reg-names:
> +    items:
> +      - const: syscon
> +      - const: isp
> +
> +  clocks:
> +    maxItems: 7
> +
> +  clock-names:
> +    items:
> +      - const: apb_func
> +      - const: wrapper_clk_c
> +      - const: dvp_inv
> +      - const: axiwr
> +      - const: mipi_rx0_pxl
> +      - const: ispcore_2x
> +      - const: isp_axi
> +
> +  resets:
> +    maxItems: 6
> +
> +  reset-names:
> +    items:
> +      - const: wrapper_p
> +      - const: wrapper_c
> +      - const: axird
> +      - const: axiwr
> +      - const: isp_top_n
> +      - const: isp_top_axi
> +
> +  power-domains:
> +    items:
> +      - description: JH7110 ISP Power Domain Switch Controller.
> +
> +  interrupts:
> +    maxItems: 4
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +
> +    properties:
> +      port@0:
> +        $ref: /schemas/graph.yaml#/$defs/port-base
> +        unevaluatedProperties: false
> +        description: Input port for receiving DVP data.
> +
> +        properties:
> +          endpoint:
> +            $ref: video-interfaces.yaml#
> +            unevaluatedProperties: false
> +
> +            properties:
> +              bus-width:
> +                const: 8
> +
> +              data-shift:
> +                const: 2

As far as I can tell, those two properties are not handled by the
driver. I assume this is because the driver doesn't support the DVP
input yet. That's fine, but it makes it a bit hard to review the device
tree. Could you provide some information about the DVP hardware
interface ? Does it support both BT.656 and sync signals, or just sync
signals ? Are the polarities of the clock and h/v sync controllable ?
Is the parallel input bus 8-bit wide or are other options supported ?
And finally, what are you modelling with data-shift: 2 ?

> +
> +      port@1:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description: Input port for receiving CSI data.
> +
> +    required:
> +      - port@0
> +      - port@1
> +
> +required:
> +  - compatible
> +  - reg
> +  - reg-names
> +  - clocks
> +  - clock-names
> +  - resets
> +  - reset-names
> +  - power-domains
> +  - interrupts
> +  - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    isp@19840000 {
> +        compatible = "starfive,jh7110-camss";
> +        reg = <0x19840000 0x10000>,
> +              <0x19870000 0x30000>;
> +        reg-names = "syscon", "isp";
> +        clocks = <&ispcrg 0>,
> +                 <&ispcrg 13>,
> +                 <&ispcrg 2>,
> +                 <&ispcrg 12>,
> +                 <&ispcrg 1>,
> +                 <&syscrg 51>,
> +                 <&syscrg 52>;
> +        clock-names = "apb_func",
> +                      "wrapper_clk_c",
> +                      "dvp_inv",
> +                      "axiwr",
> +                      "mipi_rx0_pxl",
> +                      "ispcore_2x",
> +                      "isp_axi";
> +        resets = <&ispcrg 0>,
> +                 <&ispcrg 1>,
> +                 <&ispcrg 10>,
> +                 <&ispcrg 11>,
> +                 <&syscrg 41>,
> +                 <&syscrg 42>;
> +        reset-names = "wrapper_p",
> +                      "wrapper_c",
> +                      "axird",
> +                      "axiwr",
> +                      "isp_top_n",
> +                      "isp_top_axi";
> +        power-domains = <&pwrc 5>;
> +        interrupts = <92>, <87>, <88>, <90>;
> +
> +        ports {
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +            port@0 {
> +                reg = <0>;
> +                vin_from_sc2235: endpoint {
> +                    remote-endpoint = <&sc2235_to_vin>;
> +                    bus-width = <8>;
> +                    data-shift = <2>;
> +                    hsync-active = <1>;
> +                    vsync-active = <0>;
> +                    pclk-sample = <1>;
> +                };
> +            };
> +
> +            port@1 {
> +                reg = <1>;
> +                vin_from_csi2rx: endpoint {
> +                    remote-endpoint = <&csi2rx_to_vin>;
> +                };
> +            };
> +        };
> +    };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index bbb8b5c0187b..b8c76b0d7eb3 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -19909,6 +19909,13 @@ M:	Ion Badulescu <ionut@badula.org>
>  S:	Odd Fixes
>  F:	drivers/net/ethernet/adaptec/starfire*
>  
> +STARFIVE CAMERA SUBSYSTEM DRIVER
> +M:	Jack Zhu <jack.zhu@starfivetech.com>
> +M:	Changhuang Liang <changhuang.liang@starfivetech.com>
> +L:	linux-media@vger.kernel.org
> +S:	Maintained
> +F:	Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
> +
>  STARFIVE DEVICETREES
>  M:	Emil Renner Berthing <kernel@esmil.dk>
>  S:	Maintained
Jack Zhu April 20, 2023, 8:51 a.m. UTC | #2 
On 2023/4/19 14:15, Laurent Pinchart wrote:
> Hi Jack,
> 
> Thank you for the patch.
> 
> On Thu, Apr 13, 2023 at 11:55:39AM +0800, Jack Zhu wrote:
>> Add the bindings documentation for Starfive JH7110 Camera Subsystem
>> which is used for handing image sensor data.
>> 
>> Signed-off-by: Jack Zhu <jack.zhu@starfivetech.com>
>> ---
>>  .../bindings/media/starfive,jh7110-camss.yaml | 164 ++++++++++++++++++
>>  MAINTAINERS                                   |   7 +
>>  2 files changed, 171 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
>> 
>> diff --git a/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml b/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
>> new file mode 100644
>> index 000000000000..4cd144f1b845
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
>> @@ -0,0 +1,164 @@
>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>> +
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/media/starfive,jh7110-camss.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Starfive SoC CAMSS ISP
>> +
>> +maintainers:
>> +  - Jack Zhu <jack.zhu@starfivetech.com>
>> +  - Changhuang Liang <changhuang.liang@starfivetech.com>
>> +
>> +description:
>> +  The Starfive CAMSS ISP is a Camera interface for Starfive JH7110 SoC. It
>> +  consists of a VIN controller (Video In Controller, a top-level control until)
>> +  and an ISP.
>> +
>> +properties:
>> +  compatible:
>> +    const: starfive,jh7110-camss
>> +
>> +  reg:
>> +    maxItems: 2
>> +
>> +  reg-names:
>> +    items:
>> +      - const: syscon
>> +      - const: isp
>> +
>> +  clocks:
>> +    maxItems: 7
>> +
>> +  clock-names:
>> +    items:
>> +      - const: apb_func
>> +      - const: wrapper_clk_c
>> +      - const: dvp_inv
>> +      - const: axiwr
>> +      - const: mipi_rx0_pxl
>> +      - const: ispcore_2x
>> +      - const: isp_axi
>> +
>> +  resets:
>> +    maxItems: 6
>> +
>> +  reset-names:
>> +    items:
>> +      - const: wrapper_p
>> +      - const: wrapper_c
>> +      - const: axird
>> +      - const: axiwr
>> +      - const: isp_top_n
>> +      - const: isp_top_axi
>> +
>> +  power-domains:
>> +    items:
>> +      - description: JH7110 ISP Power Domain Switch Controller.
>> +
>> +  interrupts:
>> +    maxItems: 4
>> +
>> +  ports:
>> +    $ref: /schemas/graph.yaml#/properties/ports
>> +
>> +    properties:
>> +      port@0:
>> +        $ref: /schemas/graph.yaml#/$defs/port-base
>> +        unevaluatedProperties: false
>> +        description: Input port for receiving DVP data.
>> +
>> +        properties:
>> +          endpoint:
>> +            $ref: video-interfaces.yaml#
>> +            unevaluatedProperties: false
>> +
>> +            properties:
>> +              bus-width:
>> +                const: 8
>> +
>> +              data-shift:
>> +                const: 2
> 
> As far as I can tell, those two properties are not handled by the
> driver. I assume this is because the driver doesn't support the DVP
> input yet. That's fine, but it makes it a bit hard to review the device
> tree. Could you provide some information about the DVP hardware
> interface ? Does it support both BT.656 and sync signals, or just sync
> signals ? Are the polarities of the clock and h/v sync controllable ?
> Is the parallel input bus 8-bit wide or are other options supported ?
> And finally, what are you modelling with data-shift: 2 ?
> 

Hello Laurent,

The DVP hardware supports BT.656 and sync signals, can control the
polarities of h/v sync, supports 8/10/12 bit wide, and data-shift: 2 is
line 9-2.

Jack

>> +
>> +      port@1:
>> +        $ref: /schemas/graph.yaml#/properties/port
>> +        description: Input port for receiving CSI data.
>> +
>> +    required:
>> +      - port@0
>> +      - port@1
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - reg-names
>> +  - clocks
>> +  - clock-names
>> +  - resets
>> +  - reset-names
>> +  - power-domains
>> +  - interrupts
>> +  - ports
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    isp@19840000 {
>> +        compatible = "starfive,jh7110-camss";
>> +        reg = <0x19840000 0x10000>,
>> +              <0x19870000 0x30000>;
>> +        reg-names = "syscon", "isp";
>> +        clocks = <&ispcrg 0>,
>> +                 <&ispcrg 13>,
>> +                 <&ispcrg 2>,
>> +                 <&ispcrg 12>,
>> +                 <&ispcrg 1>,
>> +                 <&syscrg 51>,
>> +                 <&syscrg 52>;
>> +        clock-names = "apb_func",
>> +                      "wrapper_clk_c",
>> +                      "dvp_inv",
>> +                      "axiwr",
>> +                      "mipi_rx0_pxl",
>> +                      "ispcore_2x",
>> +                      "isp_axi";
>> +        resets = <&ispcrg 0>,
>> +                 <&ispcrg 1>,
>> +                 <&ispcrg 10>,
>> +                 <&ispcrg 11>,
>> +                 <&syscrg 41>,
>> +                 <&syscrg 42>;
>> +        reset-names = "wrapper_p",
>> +                      "wrapper_c",
>> +                      "axird",
>> +                      "axiwr",
>> +                      "isp_top_n",
>> +                      "isp_top_axi";
>> +        power-domains = <&pwrc 5>;
>> +        interrupts = <92>, <87>, <88>, <90>;
>> +
>> +        ports {
>> +            #address-cells = <1>;
>> +            #size-cells = <0>;
>> +            port@0 {
>> +                reg = <0>;
>> +                vin_from_sc2235: endpoint {
>> +                    remote-endpoint = <&sc2235_to_vin>;
>> +                    bus-width = <8>;
>> +                    data-shift = <2>;
>> +                    hsync-active = <1>;
>> +                    vsync-active = <0>;
>> +                    pclk-sample = <1>;
>> +                };
>> +            };
>> +
>> +            port@1 {
>> +                reg = <1>;
>> +                vin_from_csi2rx: endpoint {
>> +                    remote-endpoint = <&csi2rx_to_vin>;
>> +                };
>> +            };
>> +        };
>> +    };
>> diff --git a/MAINTAINERS b/MAINTAINERS
>> index bbb8b5c0187b..b8c76b0d7eb3 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -19909,6 +19909,13 @@ M:	Ion Badulescu <ionut@badula.org>
>>  S:	Odd Fixes
>>  F:	drivers/net/ethernet/adaptec/starfire*
>>  
>> +STARFIVE CAMERA SUBSYSTEM DRIVER
>> +M:	Jack Zhu <jack.zhu@starfivetech.com>
>> +M:	Changhuang Liang <changhuang.liang@starfivetech.com>
>> +L:	linux-media@vger.kernel.org
>> +S:	Maintained
>> +F:	Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
>> +
>>  STARFIVE DEVICETREES
>>  M:	Emil Renner Berthing <kernel@esmil.dk>
>>  S:	Maintained
>
Jack Zhu April 25, 2023, 6:34 a.m. UTC | #3 
Hello Laurent,

On 2023/4/24 20:02, Laurent Pinchart wrote:
> Hi Jack,
> 
> On Thu, Apr 20, 2023 at 04:51:39PM +0800, Jack Zhu wrote:
>> On 2023/4/19 14:15, Laurent Pinchart wrote:
>> > On Thu, Apr 13, 2023 at 11:55:39AM +0800, Jack Zhu wrote:
>> >> Add the bindings documentation for Starfive JH7110 Camera Subsystem
>> >> which is used for handing image sensor data.
>> >> 
>> >> Signed-off-by: Jack Zhu <jack.zhu@starfivetech.com>
>> >> ---
>> >>  .../bindings/media/starfive,jh7110-camss.yaml | 164 ++++++++++++++++++
>> >>  MAINTAINERS                                   |   7 +
>> >>  2 files changed, 171 insertions(+)
>> >>  create mode 100644 Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
>> >> 
>> >> diff --git a/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml b/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
>> >> new file mode 100644
>> >> index 000000000000..4cd144f1b845
>> >> --- /dev/null
>> >> +++ b/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
>> >> @@ -0,0 +1,164 @@
>> >> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>> >> +
>> >> +%YAML 1.2
>> >> +---
>> >> +$id: http://devicetree.org/schemas/media/starfive,jh7110-camss.yaml#
>> >> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> >> +
>> >> +title: Starfive SoC CAMSS ISP
>> >> +
>> >> +maintainers:
>> >> +  - Jack Zhu <jack.zhu@starfivetech.com>
>> >> +  - Changhuang Liang <changhuang.liang@starfivetech.com>
>> >> +
>> >> +description:
>> >> +  The Starfive CAMSS ISP is a Camera interface for Starfive JH7110 SoC. It
>> >> +  consists of a VIN controller (Video In Controller, a top-level control until)
>> >> +  and an ISP.
>> >> +
>> >> +properties:
>> >> +  compatible:
>> >> +    const: starfive,jh7110-camss
>> >> +
>> >> +  reg:
>> >> +    maxItems: 2
>> >> +
>> >> +  reg-names:
>> >> +    items:
>> >> +      - const: syscon
>> >> +      - const: isp
>> >> +
>> >> +  clocks:
>> >> +    maxItems: 7
>> >> +
>> >> +  clock-names:
>> >> +    items:
>> >> +      - const: apb_func
>> >> +      - const: wrapper_clk_c
>> >> +      - const: dvp_inv
>> >> +      - const: axiwr
>> >> +      - const: mipi_rx0_pxl
>> >> +      - const: ispcore_2x
>> >> +      - const: isp_axi
>> >> +
>> >> +  resets:
>> >> +    maxItems: 6
>> >> +
>> >> +  reset-names:
>> >> +    items:
>> >> +      - const: wrapper_p
>> >> +      - const: wrapper_c
>> >> +      - const: axird
>> >> +      - const: axiwr
>> >> +      - const: isp_top_n
>> >> +      - const: isp_top_axi
>> >> +
>> >> +  power-domains:
>> >> +    items:
>> >> +      - description: JH7110 ISP Power Domain Switch Controller.
>> >> +
>> >> +  interrupts:
>> >> +    maxItems: 4
>> >> +
>> >> +  ports:
>> >> +    $ref: /schemas/graph.yaml#/properties/ports
>> >> +
>> >> +    properties:
>> >> +      port@0:
>> >> +        $ref: /schemas/graph.yaml#/$defs/port-base
>> >> +        unevaluatedProperties: false
>> >> +        description: Input port for receiving DVP data.
>> >> +
>> >> +        properties:
>> >> +          endpoint:
>> >> +            $ref: video-interfaces.yaml#
>> >> +            unevaluatedProperties: false
>> >> +
>> >> +            properties:
>> >> +              bus-width:
>> >> +                const: 8
>> >> +
>> >> +              data-shift:
>> >> +                const: 2
>> > 
>> > As far as I can tell, those two properties are not handled by the
>> > driver. I assume this is because the driver doesn't support the DVP
>> > input yet. That's fine, but it makes it a bit hard to review the device
>> > tree. Could you provide some information about the DVP hardware
>> > interface ? Does it support both BT.656 and sync signals, or just sync
>> > signals ? Are the polarities of the clock and h/v sync controllable ?
>> > Is the parallel input bus 8-bit wide or are other options supported ?
>> > And finally, what are you modelling with data-shift: 2 ?
>> 
>> Hello Laurent,
>> 
>> The DVP hardware supports BT.656 and sync signals, can control the
>> polarities of h/v sync, supports 8/10/12 bit wide, and data-shift: 2 is
>> line 9-2.
> 
> Thank you for the information. Endpoints for port@0 should then require
> bus-type. The hsync-active and vsync-active should be listed with
> default values and be optional. bus-width should have 8, 10 and 12 as
> supported values, and be required, or have a default (I think making it
> required is best). data-shift should list supported values too,
> including 0, and be optional with a default of 0.
> 

Thank you for your suggestion. I will make the following modifications:

            properties:
              bus-type:
                enum: [5, 6]

              bus-width:
                enum: [8, 10, 12]

              data-shift:
                enum: [0, 2]
                default: 0

              hsync-active:
                enum: [0, 1]
                default: 1

              vsync-active:
                enum: [0, 1]
                default: 1
            
            required:
              - bus-type
              - bus-width

>> >> +
>> >> +      port@1:
>> >> +        $ref: /schemas/graph.yaml#/properties/port
>> >> +        description: Input port for receiving CSI data.
>> >> +
>> >> +    required:
>> >> +      - port@0
>> >> +      - port@1
>> >> +
>> >> +required:
>> >> +  - compatible
>> >> +  - reg
>> >> +  - reg-names
>> >> +  - clocks
>> >> +  - clock-names
>> >> +  - resets
>> >> +  - reset-names
>> >> +  - power-domains
>> >> +  - interrupts
>> >> +  - ports
>> >> +
>> >> +additionalProperties: false
>> >> +
>> >> +examples:
>> >> +  - |
>> >> +    isp@19840000 {
>> >> +        compatible = "starfive,jh7110-camss";
>> >> +        reg = <0x19840000 0x10000>,
>> >> +              <0x19870000 0x30000>;
>> >> +        reg-names = "syscon", "isp";
>> >> +        clocks = <&ispcrg 0>,
>> >> +                 <&ispcrg 13>,
>> >> +                 <&ispcrg 2>,
>> >> +                 <&ispcrg 12>,
>> >> +                 <&ispcrg 1>,
>> >> +                 <&syscrg 51>,
>> >> +                 <&syscrg 52>;
>> >> +        clock-names = "apb_func",
>> >> +                      "wrapper_clk_c",
>> >> +                      "dvp_inv",
>> >> +                      "axiwr",
>> >> +                      "mipi_rx0_pxl",
>> >> +                      "ispcore_2x",
>> >> +                      "isp_axi";
>> >> +        resets = <&ispcrg 0>,
>> >> +                 <&ispcrg 1>,
>> >> +                 <&ispcrg 10>,
>> >> +                 <&ispcrg 11>,
>> >> +                 <&syscrg 41>,
>> >> +                 <&syscrg 42>;
>> >> +        reset-names = "wrapper_p",
>> >> +                      "wrapper_c",
>> >> +                      "axird",
>> >> +                      "axiwr",
>> >> +                      "isp_top_n",
>> >> +                      "isp_top_axi";
>> >> +        power-domains = <&pwrc 5>;
>> >> +        interrupts = <92>, <87>, <88>, <90>;
>> >> +
>> >> +        ports {
>> >> +            #address-cells = <1>;
>> >> +            #size-cells = <0>;
>> >> +            port@0 {
>> >> +                reg = <0>;
>> >> +                vin_from_sc2235: endpoint {
>> >> +                    remote-endpoint = <&sc2235_to_vin>;
>> >> +                    bus-width = <8>;
>> >> +                    data-shift = <2>;
>> >> +                    hsync-active = <1>;
>> >> +                    vsync-active = <0>;
>> >> +                    pclk-sample = <1>;
>> >> +                };
>> >> +            };
>> >> +
>> >> +            port@1 {
>> >> +                reg = <1>;
>> >> +                vin_from_csi2rx: endpoint {
>> >> +                    remote-endpoint = <&csi2rx_to_vin>;
>> >> +                };
>> >> +            };
>> >> +        };
>> >> +    };
>> >> diff --git a/MAINTAINERS b/MAINTAINERS
>> >> index bbb8b5c0187b..b8c76b0d7eb3 100644
>> >> --- a/MAINTAINERS
>> >> +++ b/MAINTAINERS
>> >> @@ -19909,6 +19909,13 @@ M:	Ion Badulescu <ionut@badula.org>
>> >>  S:	Odd Fixes
>> >>  F:	drivers/net/ethernet/adaptec/starfire*
>> >>  
>> >> +STARFIVE CAMERA SUBSYSTEM DRIVER
>> >> +M:	Jack Zhu <jack.zhu@starfivetech.com>
>> >> +M:	Changhuang Liang <changhuang.liang@starfivetech.com>
>> >> +L:	linux-media@vger.kernel.org
>> >> +S:	Maintained
>> >> +F:	Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
>> >> +
>> >>  STARFIVE DEVICETREES
>> >>  M:	Emil Renner Berthing <kernel@esmil.dk>
>> >>  S:	Maintained
>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml b/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
new file mode 100644
index 000000000000..4cd144f1b845
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
@@ -0,0 +1,164 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/starfive,jh7110-camss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Starfive SoC CAMSS ISP
+
+maintainers:
+  - Jack Zhu <jack.zhu@starfivetech.com>
+  - Changhuang Liang <changhuang.liang@starfivetech.com>
+
+description:
+  The Starfive CAMSS ISP is a Camera interface for Starfive JH7110 SoC. It
+  consists of a VIN controller (Video In Controller, a top-level control until)
+  and an ISP.
+
+properties:
+  compatible:
+    const: starfive,jh7110-camss
+
+  reg:
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: syscon
+      - const: isp
+
+  clocks:
+    maxItems: 7
+
+  clock-names:
+    items:
+      - const: apb_func
+      - const: wrapper_clk_c
+      - const: dvp_inv
+      - const: axiwr
+      - const: mipi_rx0_pxl
+      - const: ispcore_2x
+      - const: isp_axi
+
+  resets:
+    maxItems: 6
+
+  reset-names:
+    items:
+      - const: wrapper_p
+      - const: wrapper_c
+      - const: axird
+      - const: axiwr
+      - const: isp_top_n
+      - const: isp_top_axi
+
+  power-domains:
+    items:
+      - description: JH7110 ISP Power Domain Switch Controller.
+
+  interrupts:
+    maxItems: 4
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: Input port for receiving DVP data.
+
+        properties:
+          endpoint:
+            $ref: video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            properties:
+              bus-width:
+                const: 8
+
+              data-shift:
+                const: 2
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Input port for receiving CSI data.
+
+    required:
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - clocks
+  - clock-names
+  - resets
+  - reset-names
+  - power-domains
+  - interrupts
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    isp@19840000 {
+        compatible = "starfive,jh7110-camss";
+        reg = <0x19840000 0x10000>,
+              <0x19870000 0x30000>;
+        reg-names = "syscon", "isp";
+        clocks = <&ispcrg 0>,
+                 <&ispcrg 13>,
+                 <&ispcrg 2>,
+                 <&ispcrg 12>,
+                 <&ispcrg 1>,
+                 <&syscrg 51>,
+                 <&syscrg 52>;
+        clock-names = "apb_func",
+                      "wrapper_clk_c",
+                      "dvp_inv",
+                      "axiwr",
+                      "mipi_rx0_pxl",
+                      "ispcore_2x",
+                      "isp_axi";
+        resets = <&ispcrg 0>,
+                 <&ispcrg 1>,
+                 <&ispcrg 10>,
+                 <&ispcrg 11>,
+                 <&syscrg 41>,
+                 <&syscrg 42>;
+        reset-names = "wrapper_p",
+                      "wrapper_c",
+                      "axird",
+                      "axiwr",
+                      "isp_top_n",
+                      "isp_top_axi";
+        power-domains = <&pwrc 5>;
+        interrupts = <92>, <87>, <88>, <90>;
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+            port@0 {
+                reg = <0>;
+                vin_from_sc2235: endpoint {
+                    remote-endpoint = <&sc2235_to_vin>;
+                    bus-width = <8>;
+                    data-shift = <2>;
+                    hsync-active = <1>;
+                    vsync-active = <0>;
+                    pclk-sample = <1>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+                vin_from_csi2rx: endpoint {
+                    remote-endpoint = <&csi2rx_to_vin>;
+                };
+            };
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index bbb8b5c0187b..b8c76b0d7eb3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19909,6 +19909,13 @@  M:	Ion Badulescu <ionut@badula.org>
 S:	Odd Fixes
 F:	drivers/net/ethernet/adaptec/starfire*
 
+STARFIVE CAMERA SUBSYSTEM DRIVER
+M:	Jack Zhu <jack.zhu@starfivetech.com>
+M:	Changhuang Liang <changhuang.liang@starfivetech.com>
+L:	linux-media@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
+
 STARFIVE DEVICETREES
 M:	Emil Renner Berthing <kernel@esmil.dk>
 S:	Maintained